.infinite {
  width: 140px;
  height: 80px;
  position: relative;
}

.infinite:before,
.infinite:after {
  position: absolute;
  width: 30px;
  height: 30px;
  border: 20px solid skyblue;
  border-radius: 45px 0 45px 45px;
  content: '';
  transform: rotate(45deg);
  left: 0;
  top: 0;
}

.infinite:after {
  transform: rotate(-135deg);
  right: 0;
  left: unset;
  top: 0;
}
